产品详情
分子别名(Synonym)
FLT3LG, FL, FLT3L, Flt3 ligand
表达区间及表达系统(Source)
Human Flt-3 Ligand Protein, Research Grade (FLL-H5219) is expressed from human 293 cells (HEK293). It contains AA Thr 27 - Pro 185 (Accession # P49771-1).
Predicted N-terminus: Thr 27
Request for sequence蛋白结构(Molecular Characterization)

This protein carries no "tag".
The protein has a calculated MW of 18.0 kDa. The protein migrates as 24 kDa, 27 kDa±3 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素(Endotoxin)
Less than 0.01 EU per μg by the LAL method / rFC method.
纯度(Purity)
>95% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.
制剂(Formulation)
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法(Reconstitution)
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储(Storage)
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
质量管理控制体系(QMS)
质量说明(Quality Description)
ACRO's Research-grade products are suitable for a wide range of cell culture applications, particularly for research use in academic institutions. These products are sterilized by filtration before lyophilization. Typical specifications include endotoxin levels of <0.01 EU/μg and purities >95%. Biological activity is calibrated against WHO/NIBSC standards when available.
ACRO's Premium-grade (Pre-GMP) products are characterized by their high quality and enhanced safety profiles, making them ideal for early-stage discovery and manufacturing processes in cell therapy companies. A key advantage is their seamless transition to corresponding GMP-grade versions. Biological activity is calibrated against WHO/NIBSC standards when available. Typical specifications include endotoxin levels of <0.01 EU/μg and purities >95%. In addition, rigorous testing is conducted to ensure the absence of mycoplasma, HCD, and HCP, thereby guaranteeing product safety.
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数据展示
电泳(SDS-PAGE)

Human Flt-3 Ligand Protein, Research Grade on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS

The purity of Human Flt-3 Ligand Protein, Research Grade (Cat. No. FLL-H5219) is more than 95% and the molecular weight of this protein is around 42-52 kDa verified by SEC-MALS.
Report
活性(Bioactivity)-ELISA

Immobilized Human Flt-3 Ligand Protein, Research Grade (Cat. No. FLL-H5219) at 1 μg/mL (100 μL/well) can bind Human Flt-3, Fc Tag (Cat. No. FL3-H5258) with a linear range of 0.1-3.9 ng/mL (QC tested).
Protocol
活性(Bioactivity)-CELL BASE

Human Flt-3 Ligand Protein, Research Grade (Cat. No. FLL-H5219) stimulates proliferation of OCI-AML5 cells. The specific activity of Human Flt-3 Ligand Protein, Research Grade is > 5.00 x 10^5 IU/mg, which is calibrated against WHO Reference Reagent FMS-LIKE TYROSINE KINASE 3 LIGAND (Human, rDNA derived) NIBSC code: 96/532 (QC tested ).
Protocol
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